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Re: [Xen-devel] [xen-unstable test] 18851: regressions - FAIL [and 1 more messages]



On Fri, Sep 06, 2013 at 11:38:42AM +0100, Ian Jackson wrote:
> Jan Beulich writes ("Re: [xen-unstable test] 18851: regressions - FAIL"):
> > This looks like a red herring.  Having poked about in woodlouse it looks
> > like something is screwy with interrupts.  The tg3 cards aren't using
> > MSI and the USB controller is using edge not level handlers.  Another
> > machine with the same chipset is happily using MSIs.
> 
> I did the following tests overnight:
> 
>  * 3.4.60 kernel:
> 
>    Pass!  [adhoc flight 19081]
> 
>  * 3.10.10 + patch from Zoltan Kiss to limit SKB_FRAG_PAGE_ORDER
>    Subject: net/core: Order-3 frag allocator causes SWIOTLB bouncing under Xen
>    Date: Wed Sep 04 21:54:01 BST 2013
>    Message-ID: <1378327638-23956-1-git-send-email-zoltan.kiss@xxxxxxxxxx>
> 
>    Fail as before (in this case, timeout in debootstrap trying to
>    install a geust).  [adhoc flight 19082]
> 
>  * 3.10.10, kernel command line "pci=noacpi and pci=nocrs"
> 
>    Total boot failure.  SATA controller complaining bitterly about
>    lost interrupts.  [adhoc flight 19085]

Somebody (Andrew? David?) took a look at the box and found that the MSIs
were all out of whack. I guess with the 'noacpi' parameter the thinking is
that the ACPI _PRT are out of whack with the more modern kernels?

I am not that familiar with oss-test - but is each of the set of boxes
running a different version of the hypervisor? Meaning you don't
randomly install from scratch a new version of a hypervisor on different
boxes?

Thanks!
> 
> I also took woodlouse out of the main test pool, which is how we got a
> push of 4.2.  I'm going to put it back now, and make a change to
> switch to Linux 3.4.y for general tests.
> 
> I think this gets the 3.10.y problem off the critical path for
> everything else but of course we should still fix it.  I will leave
> the 3.10.y push gate in place.

Aye. Is this issue (network incredibly slow) only surfacing on this box?
No - I thought I saw the issue on gall and lice with the upstream Linux?
Are those two machines the same as woodlouse?
> 
> Ian.

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